code: def main(args):
      """Validate all submissions and copy them into place"""
      random.seed()
      temp_dir = tempfile.mkdtemp()
      logging.info("Created temporary directory: %s", temp_dir)
      validator = SubmissionValidator(
          source_dir=args.source_dir,
          target_dir=args.target_dir,
          temp_dir=temp_dir,
          do_copy=args.copy,
          use_gpu=args.use_gpu,
          containers_file=args.containers_file,
      )
      validator.run()
      logging.info("Deleting temporary directory: %s", temp_dir)
      subprocess.call(["rm", "-rf", temp_dir])
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import argparse
  import csv
  import logging
  import os
  import random
  import shutil
  import subprocess
  import tempfile
  from six import iteritems
  import validate_submission_lib
label_desc: Use image node_id 1 for calling a global function with example usage: main(args) without return types